Tunnel furnace for the thermal treatment of glass products

Details Tunnel furnace for the thermal treatment of glass products Tunnel furnace for the thermal treatment of glass products

1977-02-07

1978-05-30

Kellogg, Arthur D.

Glass manufacturing

Product cooling means

With preceding reheater

65350, 65119, C03B 2504

Patent

active

040921433

ABSTRACT:
A method of thermally treating glass products in which the products are conveyed through a number of heating zones and/or cooling zones of a tunnel furnace and are heated and cooled, respectively, by means of an airflow maintained in each zone in a direction transverse to the direction of transport; according the invention, the velocity of the airflow increases gradually both in the heating zones and in the cooling zones; for that purpose, two perforated partitions having gradually increasing flow apertures for the airflow are provided in each zone.

REFERENCES:
patent: 1896874 (1933-02-01), Wadman
patent: 3884667 (1975-05-01), Schraven et al.

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